Lubricating device



Mmm, 1924. 1,485,969 D. EDGE LUBRICATING DEVICE Filed Feb. 10 1922 M y 25x/7565065 Patented Mar. 4, 1924.

UNITE STATES DEXT'EREDGE, 0F PITTSBURGH, PENNSYLVANIA.

LUBRICATING DEVICE.

Application filed February 10, 1922. 4Serial No. 535,486.

T all fui/tom. t lmay concern:

Be it known that I, DEXTER EDGE, a citizen of the United States,- and resident of Pittsburgh, in the county of Allegheny and State of Penusyll'ania, have invented certain new and useful Improvements in Lubricating Devices, of which the followingy isa specification.

This invention relates to lubricating devices, and more particularly to lubricating devices adapted to supply oil to'steam in a steam main before it enters a steam engine 'or like device sothat it will be carried toall the moving parts thereof. I

One object of this invention is to construct a device of the class described that will provide for a more economicaland thorough lubrication of the'inechanisrn withl which it is used than devices heretofore used. Y

Another object is to provide a device that will maintain a constant head of oil so as to furnish a constant supply to the steam regardless of the irregular flow to said device..

A further object is to provide means for forcing the steam to flow from the main through the oil chamber and for forming an area of high velocity inthe main where the oil is delivered and atomized.

A still further object is to provide a device having the novel design, construction, and combination of parts hereinafter described, and illustrated in the accompanying drawings, in which- Figure 1V is a side elevation ofthe lubricating device of this invention applied to a vertical steam main shown in section. y

Figure 2 is a fragmentary top plan ofthe nozzle.

Figure 3 is a similar elevation of the nozzle.

Figure 4 is a fragmentary sectional elevation through the steam supply pipe leading to the reservoir and pre-heating f ber showing the reducing disk therein.

Referring more particularly to the drawings, the numeral 2 designates the steam main which is composed of standard pipe sections having the usual anges 3 and joined by the usual collars 4. A disk 5 having an orifice or aperture 6 of considerably less diameter than the inside diameter of the steam main is inserted between the pipe sections and forms a restriction adapted to form a Venturi tube effect. That is, it forms an area of high pressure above the disk, and an area of higher velocity and lower pressure below the disk.

It will, of course, be understood that applicant does not wish to be limited to the specific main construction described above, since various means may be employed to obtain a Venturi tube effect.

A substantially inverted T-shaped combined oil reservoir and pre-heating chamber 8 is mounted alongside lthe main 2, and a small diameter pipe '9 leads from a point above the disk 5 in the maininto the topof the chamber 8 to supply steam to` said chamber for pre-heating theoil and Yto supply pressure to force the oil from the chamber.

The pipe 9 is divided intermediate` its ends, and a, standard union ittinglO is used to `join the pipe where divided. A thin metal diskor washer` 11' having a hole 12 of less diameter than the internal diameter of the pipe 9 is inserted lin thevunion to restrict the How of the steam through the pipe.

An oil supply pipe 13venters therear end of the chamber 8 at approximately its center. The pipe 1,3V is adapted to have its other end connected to a source of oil supply, (not shown) such as a force feed or sight feed apparatus of standard design, lwhich will pump the oil up into the cham- An outlet pipe 14 leads out ofthe other end of the chamber 8 into thevmain 2 at afl point below the disk 5 where the steam How is contracted, and at a higher velocity than the flowabove the disk but at a lower pressure due to it being in the act of expanding.

A nozzle tube 15 is connected to the pipe 14 and extends into the steam How path to deliver the pre-heated oil to the steam. The nozzle tube 15 is of standard. design and has its upper face'cut away atcits forward end as at 16 and its end bent slightly upward as at 17 to form an upwardly opening,

slightly dished delivery portion.

The conduits or pipes 9, 13, and'14 have valve members 19, 20, and 21, respectively, mounted in their length to control the flow of fluid therethrough.

In operation, oil is forced into the con1 bined oil reservoir and pre-heating chamber 8 through the pipe 13, and steam flows through the pipe 9 into the chamber 8 to pre-heat the oil and force it out through the pipe 14 and nozzle tube 15.

Cil

Due to the relatively large volume or head of oil contained in the chamber 8 compared with the size of the pipes or conduits, the pulsations or irregular flow of oil is smoothed out or absorbed, and the oil flows into the atomizing nozzle in a steady flow irrespective of the iiow of oil into the chamber 8.

The nozzle 15 extends into the center of the steam flow path where the oil is atomized and mixed with the steam. In the present embodiment of the invention, the steam line is restricted above the nozzle 15 by the disk 5 and, therefore, the steam striking the nozzle is flowing at a higher velocity than the steam before the disk, and so better atomizes the oil.

The restriction in the steam main 2 caused by the disk 5 also serves to cause the steam to circulate through the chamber 8, since the steam above the disk will be at a higher pressure than the steam below the disk, at which point it is expanding to again fill the large diameter main.

While I have shown and kdescribed but one embodiment of my invention, it will be understood that I do not wish to be limited thereto, since various modifications in design, construction, and combination of parts may readily be made by those skilled in the art, without departing from the scope of the appended claims.

I claim- 1. The combination with a steam main having a restricted portion intermediate its ends adapted to form a high pressure area above said portion and a low pressure and high velocity area below said portion, of a forced feed lubricator comprising a Acombined'oil reservoir and pre-heating cha-nn ber, a conduit leading from said high pressure area in said main into said chamber, a

conduit leading from said chamber into the low pressure and high velocity area of said main, and a conduit leading into said chamber from a source of oil supply.

2. The combination with a steam main having a restricted yportion intermediate its ends ladapted to form a high pressure area above said portion and a low pressure and high velocity area below said portion, of a forced feed lubricator comprising a combined oil reservoir and pre-heating chamber, a conduit leading from said high pressure area in said main into said chamber, a con` duit leading from said chamber into the low Va relatively large body of oil at all times in said chamber, and meansfor regulating ythe flow through all of said conduits.

3. The combination witha steam mainv having a restricted portion intermediate its ends adapted to form a high pressure area above said portion and a low pressure and high. velocity area below said portion, of a forced feed lubricator comprising a combined oil reservoir and presheating chamber, a conduit leading from said high pressure area in said main into the top of said chamber, a conduit leading from one end of said chamber into the low pressure and high velocity area of said main, said last named conduit extending into the flow path of the steam passing through said main and terminating in an atomizing nozzle, and a third conduit leading into the other end of said chamber from a suitable source of oil supply.

4. The combination with a steam main having a restricted portion intermediate its ends adapted to form a high pressure area above said portion and a low pressure and vhigh velocity area below said portion, of a forced feed lubricator comprising a combined oil yreservoir and pre-heating chamber, a conduit leading from said high pressure area in said main into the top of said chamber, said conduit having a restricted portion intermediate its ends, a conduit leading from one end of said chamber into the lo'w pressure and high velocity area of said main, said last named conduit extending into the center of the flow .path of the steam passing through said main and terminating in an atomizing nozzle, a third conduit entering the other end of said chamber and adapted to conduct oil to said chamber, said conduits being so proportioned and arranged as to maintain a relatively large head of oil at all times in said chamber whereby any pulsations caused by the irregular flow ofvoil are absorbed and a constant flow of oil is supplied to said nozzle, and means for regulating the flow through each of said conduits.

In testimony whereof, I have Vhereunto set my hand.

DEXTER EDGE. 

